From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757015AbYIDSrm (ORCPT ); Thu, 4 Sep 2008 14:47:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757704AbYIDSmI (ORCPT ); Thu, 4 Sep 2008 14:42:08 -0400 Received: from mail.work.de ([212.12.32.20]:42247 "EHLO mail.work.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757249AbYIDSmG (ORCPT ); Thu, 4 Sep 2008 14:42:06 -0400 Message-ID: <48C02BF9.1080603@gmail.com> Date: Thu, 04 Sep 2008 22:42:01 +0400 From: Manu Abraham User-Agent: Thunderbird 1.5.0.14ubu (X11/20080306) MIME-Version: 1.0 To: linux-kernel@vger.kernel.org, v4l-dvb-maintainer@linuxtv.org, akpm@linux-foundation.org Subject: DVB Update [PATCH 25/31] multiproto tree X-Enigmail-Version: 0.94.0.0 Content-Type: multipart/mixed; boundary="------------040405070202010506050709" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is a multi-part message in MIME format. --------------040405070202010506050709 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit >>From 14e80f303046a7750a6cfb2210bd8fe561f21a3a Mon Sep 17 00:00:00 2001 From: Manu Abraham Date: Thu, 4 Sep 2008 14:36:16 +0200 Subject: [PATCH] DVB Optimization: enable gate in a symmetric/disciplined way, rather than implementing different ways leading to confusion. This allows multiple gate_enable/disable's in the tuner read/write functions, thereby lesser number of I/O operations throughout, eventually leading to better results. As a side effect for the demods that detect the STOP bit for auto closing, the auto closing of the gate can be avoided, thereby a minimal gain in disabling the auto detect feature as well. Improves readability on the device control. From: Manu Abraham Signed-off-by: Manu Abraham dvb_frontend.c | 2 ++ 1 file changed, 2 insertions(+) --------------040405070202010506050709 Content-Type: text/x-patch; name="25.patch" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="25.patch" >>From 14e80f303046a7750a6cfb2210bd8fe561f21a3a Mon Sep 17 00:00:00 2001 From: Manu Abraham Date: Thu, 4 Sep 2008 14:36:16 +0200 Subject: [PATCH] DVB Optimization: enable gate in a symmetric/disciplined way, rather than implementing different ways leading to confusion. This allows multiple gate_enable/disable's in the tuner read/write functions, thereby lesser number of I/O operations throughout, eventually leading to better results. As a side effect for the demods that detect the STOP bit for auto closing, the auto closing of the gate can be avoided, thereby a minimal gain in disabling the auto detect feature as well. Improves readability on the device control. From: Manu Abraham Signed-off-by: Manu Abraham diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c index c54b12c..e2d929e 100644 --- a/drivers/media/dvb/dvb-core/dvb_frontend.c +++ b/drivers/media/dvb/dvb-core/dvb_frontend.c @@ -733,6 +733,8 @@ static void dvb_frontend_init(struct dvb_frontend *fe) if (fe->ops.init) fe->ops.init(fe); if (fe->ops.tuner_ops.init) { + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); fe->ops.tuner_ops.init(fe); if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); --------------040405070202010506050709--